Perhaps you should try some spelling variations:
ky trong » ly trong, ke trong, cay trong
ban hang » ngan hang
hang vi » hang va, hanh vi, hang di
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
ky dang » ky nang, ky danh
ma hoi » mai hoi, xa hoi, ma hoa
nam so » nam sao, nam bo
vi cua » vai cua, di cua
ham so » cham soc

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ((ky trong) OR (ky dang)) ma hoi. hieu ve ((ham so) OR (nam so)) ban hang vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu cac ((ky trong) or (ky dang)) ma hoi. hieu ve ((ham so) or (nam so)) ban hang vi cua tre*.